1133421389 has 2 divisors, whose sum is σ = 1133421390. Its totient is φ = 1133421388.

The previous prime is 1133421337. The next prime is 1133421409. The reversal of 1133421389 is 9831243311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673662025 + 459759364 = 25955^2 + 21442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1133421389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1133420389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 566710694 + 566710695.

It is an arithmetic number, because the mean of its divisors is an integer number (566710695).

Almost surely, 2^1133421389 is an apocalyptic number.

It is an amenable number.

1133421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1133421389 is an equidigital number, since it uses as much as digits as its factorization.

1133421389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 1133421389 is about 33666.3242573347. The cubic root of 1133421389 is about 1042.6306028640.

It can be divided in two parts, 11334 and 21389, that added together give a palindrome (32723).

The spelling of 1133421389 in words is "one billion, one hundred thirty-three million, four hundred twenty-one thousand, three hundred eighty-nine".